连作晚稻品种生长特性及产量比较  

Comparison of growth characteristics and yield of continuous cropping late rice varieties

作　　者：王丽丹 包碎云 朱德峰[3] WANG Lidan;BAO Suiyun;ZHU Defeng(Yaoxiang Family Farm,Yueqing City,Yueqing 325608,Zhejiang;Yueqing Lvnong Rice Cooperative for Farmers,Yueqing 325612,Zhejiang;China National Rice Research Institute,Hangzhou 310006,Zhejiang)

机构地区：[1]乐清市瑶乡家庭农场,浙江乐清325608 [2]乐清市绿农水稻专业合作社,浙江乐清325612 [3]中国水稻研究所,浙江杭州310006

出　　处：《浙江农业科学》2024年第11期2543-2546,共4页Journal of Zhejiang Agricultural Sciences

基　　金：国家现代农业产业技术体系建设专项(CARS-01-23);宁波市科技计划(2019B10003)。

摘　　要：针对连作晚稻季节紧、产量低的问题,比较6个高产杂交稻品种的生长特性和产量。结果表明,甬优59、华中优9326、嘉丰优2号和甬优31每667 m^(2)产量分别较对照品种甬优1540提高12.0%、14.0%、15.4%和16.4%。嘉丰优2号和华中优9326产量较对照品种增产的主要原因是每穗粒数和千粒重提高,甬优31和甬优59产量较甬优1540增产的主要原因是每穗粒数提高。供试品种的生育期较对照品种延长1~6 d。生产上可根据早晚稻品种的生育期进行搭配,选用生长期适宜的杂交稻品种作连作晚稻机插种植。In order to solve the problems of tight season and low yield of continuous cropping late rice,the growth characteristics and yield of six high-yield hybrid rice varieties were compared.The results showed that the yield per 667 m^(2) of Yongyou 59,Huazhongyou 9326,Jiafengyou 2 and Yongyou 31 was 12.0%,14.0%,15.4%and 16.4%higher than that of the control variety Yongyou 1540,respectively.The main reason for the increase in yield of Jiafengyou 2 and Huazhongyou 9326 compared with the control variety was the increase in the number of grains per spike and thousand grain weight,and the main reason for the increase in yield of Yongyou 31 and Yongyou 59 compared with Yongyou 1540 was the increase in the number of grains per panicle.The growth period of the tested varieties was extended by 1-6 days compared with that of the control varieties.In terms of production,the growth period of early and late rice varieties can be matched,and the hybrid rice varieties with suitable growth period can be selected for continuous cropping late rice machine transplanting.

关 键 词：连作晚稻 杂交稻 籼粳杂交稻 机插 产量 

分 类 号：S511[农业科学—作物学]